Wednesday, May 29, 2013 ratings — Premieres:The American Baking Competition and ABC’s The Lookout. New episodes:MasterChef, Dateline, Family Tools, and How to Live with Your Parents (For the Rest of Your Life). Specials:Healing in the Heartland: Relief Benefit Concert.Episode reruns:The Middle, Modern Family, Arrow, Supernatural, Chicago Fire, Criminal Minds, and CSI.

NBC8pm – Dateline: 1.6 in the demo with 7.09 million.9pm – Healing in the Heartland: (special) 1.9 in the demo with 8.56 million.10pm – Chicago Fire: (rerun) 0.9 in the demo with 3.77 million.

These are the fast affiliate ratings. The “demo” refers to the viewers in the 18-49 demographic. The percentages represent the change since the previous original episode. (Percentages aren’t given for reruns or specials.) “Million” refers to the total number of viewers.

To see past ratings for a particular show, click the show’s link. The show pages are updated with the daily final ratings when they become available. Those pages include percentage changes in both the demo and total viewership, in addition to season averages to date.